Home / 6,122.35-8,436.99-4,129.44

Finding the Fourth Proportional to 6,122.35, 8,436.99 and 4,129.44

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Solution

The fourth proportional to 6,122.35, 8,436.99 and 4,129.44 is: 5,690.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,122.35 : 8,436.99 = 4,129.44 : x
  2. Step 2: Convert to fraction form
    6,122.35/8,436.99 = 4,129.44/x
  3. Step 3: Cross multiply
    6,122.35x = 8,436.99 × 4,129.44
  4. Step 4: Simplify right side
    6,122.35x = 34,840,075.29
  5. Step 5: Solve for x
    x = 34,840,075.29/6,122.35
  6. Step 6: Final answer
    x = 5,690.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.